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Environmental Sampling, Monitoring and Site Assessment Data
Quality Data Asset includes all current and historical data on environmental quality with regard to the presence of radiological contamination of all kinds regulated by UMTRA,... -
EPA Enforcement and Compliance History Online: Water Effluent Charts Summaries
Summary of compliance status each outfall and parameter for one Clean Water Act discharge permit. Provides the current compliance status and overall compliance status for the... -
Water Quality attainment Information from Clean Water Act Statewide Statistic...
Designated uses assessed by statewide statistical surveys and their state and national attainment categories. Statewide statistical surveys are water quality assessments... -
Assessed Clean Water Act 305(b) Waters
Identifies assessed waters under the Clean Water Act 305(b) program. -
Wetland Program Development Grants (WPDGs)
The Wetland Grant Database (WGD) houses grant data for Wetland Program Development Grants (created by EPA in 1990 under the Clean Water Act Section 104(b)(3) authority). The... -
EPA Enforcement and Compliance History Online: Water Discharge Monitoring Rep...
Integrated Compliance Information System (ICIS) National Pollutant Discharge Elimination System (NPDES) Discharge Monitoring Report (DMR) data sets for Clean Water Act permitted... -
EPA Enforcement and Compliance History Online: Water Discharge Monitoring Rep...
Integrated Compliance Information System (ICIS) National Pollutant Discharge Elimination System (NPDES) Discharge Monitoring Report (DMR) data sets for Clean Water Act permitted... -
NLCD 2011 IC reference data
Excel files have percentage impervious cover estimates for the Chesapeake Bay region from 30 m 1 m data for six assessment units - 12-digit hydrologic units (watersheds), the... -
Assessed Clean Water Act 305(b) Water Designated Use Attainments
Identifies the state and EPA water designated use information and the use attainment status for assessed waters under the Clean Water Act 305(b) program. -
Clean Water Act 303(d) Listed Impaired Waters and their Causes of Impairment ...
Waters identified as impaired as well as their associated causes of impairment from all approved Clean Water Act 303(d) lists submitted by the states. Includes all approved... -
Watershed impervious cover relative to stream location
Estimates of watershed (12-digit huc) impervious cover and impervious cover near streams and water body shorelines for three dates (2001, 2006, 2011) using NLCD data.... -
EPA Enforcement and Compliance History Online: Clean Water Act Dischargers Da...
The Enforcement and Compliance History Online (ECHO) data sets have been compiled for access to larger sets of national data to ensure that ECHO meets your data retrieval needs:... -
Clean Water Act Approved Total Maximum Daily Load (TMDL) Documents
Information from Approved and Established TMDL Documents as well as TMDLs that have been Withdrawn. This includes the pollutants identified in the TMDL Document, the 303(d)... -
Current Clean Water Act 303(d) Listed Impaired Waters
Waters identified as impaired from the current approved Clean Water Act 303(d) lists submitted by states. -
EPA Enforcement and Compliance History Online: ICIS-NPDES Limit
Integrated Compliance Information System (ICIS) National Pollutant Discharge Elimination System (NPDES) Permit Limits data set for Clean Water Act permitted dischargers. -
Long Term Hydrological (Radiological) Site Monitoring Data
Quality Data Asset includes all current and historical data on the quality of water with regard to the presence of water pollutants of all kinds regulated by the Clean Water... -
Safe Drinking Water Information System (SDWIS) Federal Reports Advanced Searc...
A database where EPA has compiled data on public drinking water systems and whether they have certain drinking water violations. This data is collected by the states and given... -
EPA Enforcement and Compliance History Online: Water Discharge Monitoring Rep...
Integrated Compliance Information System (ICIS) National Pollutant Discharge Elimination System (NPDES) Discharge Monitoring Report (DMR) data sets for Clean Water Act permitted... -
Assessed Clean Water Act 305(b) Water Causes of Impairment
Identifies the causes of impairment for assessed waters under the Clean Water Act 305(b) program. -
EPA Enforcement and Compliance History Online: Water Discharge Monitoring Rep...
Integrated Compliance Information System (ICIS) National Pollutant Discharge Elimination System (NPDES) Discharge Monitoring Report (DMR) data sets for Clean Water Act permitted...